Class: Cabriolet::Binary::OABStructures::PatchHeader

Inherits:

BinData::Record

• Object
• BinData::Record
• Cabriolet::Binary::OABStructures::PatchHeader

Defined in:

lib/cabriolet/binary/oab_structures.rb

Overview

OAB header for patch files (version 3.2)

Structure (28 bytes):

• 4 bytes: version_hi (should be 3)

• 4 bytes: version_lo (should be 2 for patches)

• 4 bytes: block_max (maximum block size)

• 4 bytes: source_size (base file size)

• 4 bytes: target_size (output file size)

• 4 bytes: source_crc (CRC32 of base file)

• 4 bytes: target_crc (CRC32 of output file)

Instance Method Summary

• #valid? ⇒ Boolean

  Check if header is valid.

Instance Method Details

#valid? ⇒ Boolean

Check if header is valid

Returns:

• (Boolean)

# File 'lib/cabriolet/binary/oab_structures.rb', line 90

def valid?
  version_hi == 3 && version_lo == 2
end